In the course
Keep watching
10 videos · 4 h 37 min
Lecture · Nobel Prize
Nobel Prize · Alain Aspect · 2022
"From Einstein's doubts to quantum technologies": Alain Aspect on his Orsay experiments of the early 1980s, which tested Bell's inequality with fast-switching polarizers, and on how entanglement went from philosophical puzzle to technological resource.
Lecture · Nobel Prize
Nobel Prize · Anton Zeilinger · 2022
"A Voyage through Quantum Wonderland": Anton Zeilinger on quantum teleportation, entanglement swapping and loophole-free Bell tests, told by the physicist whose group performed many of those experiments.
Lecture · MIT
MIT OpenCourseWare · Allan Adams · 2013
A full MIT 8.04 lecture by Allan Adams. The first part previews quantum computing (the no-cloning theorem, met briefly in Part 5 and fully in Chapter 24, and the Deutsch–Jozsa algorithm of Chapter 23); the last part is devoted to the EPR experiment and Bell's inequality, the ideal bridge from this chapter to the next. Best watched after the lesson.
Course · MIT
MIT OpenCourseWare · Allan Adams · 2013
Allan Adams' celebrated course starts from superposition and the experimental facts, builds the wavefunction, operators and the Schrödinger equation, then tours scattering, hydrogen, identical particles and band structure before closing on entanglement and Bell's theorem. Calculus and a little linear algebra are enough to keep up.
Course · Oxford
University of Oxford · James Binney · 2009–10
James Binney's Oxford course, given over Michaelmas Term 2009 and Hilary Term 2010 and built on probability amplitudes and Dirac notation from the very first lecture. Highlights: tunnelling and radioactive decay, the EPR argument and Bell's inequality, spin and the Stern–Gerlach experiment, and a full treatment of hydrogen.
Interview · Nobel Prize
Nobel Prize · Alain Aspect
The start jumps to the last question of Aspect's official Nobel interview, recorded in Stockholm on 6 December 2022: what does he think of people saying he proved Einstein wrong? Set his short answer beside this section's 'Einstein's scorecard'; the earlier questions cover how he came to science and to quantum mechanics.
Lecture · Perimeter
Perimeter Institute for Theoretical Physics · Shohini Ghose · 2020
Physicist Shohini Ghose of Wilfrid Laurier University surveys the quantum technologies that grow out of superposition and entanglement, from quantum computers to secure communication. A clear public lecture given at Perimeter Institute in March 2020.
Explainer · Fermilab
Fermilab
Fermilab's Dr. Don Lincoln explains what the phrase 'quantum entanglement' means and how two objects can be linked by quantum effects. As you watch, keep two questions in mind: what exactly is correlated, and could anything in the setup carry a message? Part 5 of the lesson settles the second question with a two-line calculation.
Explainer · YouTube
Looking Glass Universe
A short, careful argument for why entangled particles cannot carry messages, using the same Alice-and-Bob setup as Part 5. The video speaks of the particles 'affecting' each other; treat that as one way of talking (Part 5 explains why it is interpretation-dependent) and focus on the proof that Bob's results stay random.
Lecture · MIT
MIT OpenCourseWare · Barton Zwiebach
A 13-minute segment of Barton Zwiebach's MIT 8.04 (Spring 2016) devoted to entanglement. Watch it next to this section's factoring argument and keep the definition in front of you: a joint state is entangled exactly when it cannot be written as one particle's state times the other's.